Bion h



(No Model.)

B. 1-1. BOWMAN.

PRINTING PRESS GRIP.

No. 452,745. Patented May 19,1891.

1360/1 flflawmam 5- 0c 54mm BY W ATTY'S.

UNITED STATES PATENT OFFICE.

BION H. BOIVMAN, OF NEIVARK, NEW JERSEY, ASSIGNOR OF ONE-HALF TO AXEL H.GAARDER, OF SAME PLACE.

PRINTING-PRESS GRIP.

SPECIFICATION forming part of Letters Patent No. 452,745, dated May 19,1891. Application filed December 21, 1889. Serial No. 334,516. (Nomodel.)

To all whom it may concern:

Be it known that I, BIoN H. BOWMAN, a citizen of the United States,residing at Newark, in the county of Essex and State of New 5 Jersey,have invented certain new and useful Improvements in Printing-PressGrips; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin X the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to letters of referencemarked thereon, which form a part of this specification;

[ The object of this invention is to provide an attachment for aprinting-press by means of which the paper may be gripped as close tothe edge thereof as possible, so that the whole surface of the paper orcard may be exposed to the type and be printed upon, if desired.

The invention consists in the improved grip attachment and in thecombination and arrangement of the several parts thereof, as hereinafterset forth,-and finally pointed out in the claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts wherever they occur, Figure 1represents a top plan view of myimproved 3o grip attachment adjustedupon one of the grip-bars of an ordinary printing-press. Fig. 2represents an edge view of said attachment, and Fig. 3 is an end viewthereof with spring removed.

I11 said drawings,a indicates a portion of one of the gripping-bars ofan ordinary printing-press, one edge of which, in the present instance,is toothed, the better to hold the device in position, as will beunderstood upon reference to Fig. 1. Said device or attachment, which isshown in Fig. l in position, consists of a bottom plate cl, providedwith an arm or extension 0 of less, dimensions than said plate 0?, a topplate 8, provided with lateraliyprojecting spring arms g slightly curveddownward, as indicated in Figs. 1 and 3. Said plates d and e are securedto one another in the relation shown in Fig. 2 by means of a shoulderedrivet h and a cross-bar or flange f, the latterbeing soldered orotherwise secured to hold the parts in position, leaving an open spacebetween said plates to admit the passage therethrough of the bar a,

as indicated in Fig. 1. Between said plates is also adjusted a spring ti"6', approximately half elliptic in form, as shown. Said spring is soadjusted that its extremities press against the outer edge of the bar a,and its center or apex against the rivet h, a curve being formed in thespring to provide a seat for said rivet, as seen in Fig. 1. The purposeof the said springs g and i t" is to hold the gripping attachment firmlyin position upon the bar a, at whatever point thereon it may from timeto time be adjusted, the normal tendency of the o5 springs being topress against said bar, as will be understood.

The operation and advantages of my improvement it is thought will bereadily understood by a person skilled in the art to 7c which itappertains without further description or illustration.

Having thus described in yinvention, what I claim as-new, and desire tosecure by Letters Patent of the United States, is-

A grip attach ment for printing-presses combinin g therein the lowerplate or portion 0 cl, upper plate or portion 6, laterally-projectingspring-arms g, and spring 2' t", said parts be-' ing arranged inrelation to one anotheras described, for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this16th day of November, 1889.

BION H. BOWMAN.

W'itnesses:

CHARLES H. PELL, E. L. SHERMAN.

